Excel File Types Overview

Overview of Excel File Types

  • This document provides insights into various file types associated with Microsoft Excel, elaborating on their specific purposes and implications when saving documents in Excel.

Macro-Enabled File Type (XLSM)

  • The macro-enabled file type in Excel is denoted as .xlsm.

  • Essential for:

    • Running macros within Excel.

    • If a file contains macros or uses macros, it must be saved as xlsm for those macros to function properly.

  • Saving Procedure:

    • Go to File > Save As to save the file.

    • Example: Saving a file as macro_tutorial.xlsm on the desktop preserves macro functionality.

    • If opened later, the macros remain intact and operational.

Standard File Type (XLSX)

  • .xlsx is the default file type for Excel, representing the standard workbook format.

  • Advantages:

    • Most commonly used version of Excel files.

  • Important Considerations:

    • If saved as .xlsx, any macros within the workbook will be removed.

    • A warning prompts, stating "Visual Basics Mass macros will be removed if you save this file format. Are you sure you want to use this file format?"

  • Consequence:

    • Opening the .xlsx file reveals no macros available under the developer tab.

Legacy File Type (XLS)

  • The .xls extension is for older Excel file formats, specifically compatible with Excel versions 97 to 2004.

  • Use Case:

    • Saves files in a format accessible by older Excel versions.

  • Limitations:

    • Newer functions and features available in .xlsx might not function as intended when opened in older versions of Excel.

    • Recommended to avoid using .xls unless necessary for backward compatibility.

Common File Type (CSV)

  • Comma Separated Values (CSV) files are popular for data export and transfer.

  • Usage Notes:

    • Only supports a single sheet; attempting to save multiple sheets as CSV results in an error message stating it cannot be saved due to multiple sheets.

    • Typically used when uploading data to various online platforms (e.g., MailChimp).

    • CSV strips down the file to a minimalist format, removing all formatting (bold, underline, etc.).

  • Observations:

    • After closing and reopening the saved CSV, only raw data is displayed, devoid of any formatting previously applied in Excel.

Text File Type (TXT) with Tab Limitations

  • The .txt file format is similar to CSV but uses tabs to separate data between cells.

  • Generally accepted for uploading Excel data into platforms that require a simplified tab-delimited format.

  • Result:

    • Opens in text editors displaying the data separated by tabs for easy readability.

Summary of Recommended Practices

  • Default Saving Recommendation:

    • Use .xlsx format for general use to ensure compatibility with current Excel versions.

  • For macro usage:

    • Save as .xlsm to ensure macro functionality.

  • For older compatibility:

    • Consider saving as .xls if absolutely required.

  • For data transfers:

    • Utilize CSV or TXT (tab-delimited) formats, remembering to check file structure requirements (single sheet for CSV).